US9571014B2 - Drive circuit for an air bearing motor - Google Patents
Drive circuit for an air bearing motor Download PDFInfo
- Publication number
- US9571014B2 US9571014B2 US14/474,672 US201414474672A US9571014B2 US 9571014 B2 US9571014 B2 US 9571014B2 US 201414474672 A US201414474672 A US 201414474672A US 9571014 B2 US9571014 B2 US 9571014B2
- Authority
- US
- United States
- Prior art keywords
- voltage
- drive circuit
- accordance
- storage means
- electric motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active, expires
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P4/00—Arrangements specially adapted for regulating or controlling the speed or torque of electric motors that can be connected to two or more different electric power supplies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
- B60L1/003—Supplying electric power to auxiliary equipment of vehicles to auxiliary motors, e.g. for pumps, compressors
-
- B60L11/005—
-
- B60L11/1868—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/40—Electric propulsion with power supplied within the vehicle using propulsion power supplied by capacitors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
- B60L58/20—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having different nominal voltages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L9/00—Electric propulsion with power supply external to the vehicle
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
- H02J7/1423—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle with multiple batteries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/024—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
- H02P29/025—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load the fault being a power interruption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2210/00—Converter types
- B60L2210/10—DC to DC converters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2210/00—Converter types
- B60L2210/40—DC to AC converters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2220/00—Electrical machine types; Structures or applications thereof
- B60L2220/50—Structural details of electrical machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/10—Vehicle control parameters
- B60L2240/34—Cabin temperature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
-
- Y02T10/642—
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Definitions
- the invention relates to a drive circuit for an electric motor having an aerodynamic bearing of the motor shaft.
- Air bearings are bearings in which two parts moving against one another are separated by a thin air film. They thereby allow an almost friction-free relative movement.
- the air bearing can in particular be used with electric motors in which the driven motor shaft, i.e. the rotor, is supported by an air gap in the motor housing.
- Air bearing motors are used, for example, in air-conditioning units, in particular in air-conditioning units for rail vehicles.
- the air bearing motors are coupled to a compressor and drive it. Since the air-conditioning system, like other consumers within the rail vehicle, are fed by the supply voltage of the overhead line, this voltage supply can be briefly interrupted at specific transition points. Depending on the interruption period, this can have the result that the speed of the air bearing motors in air-conditioning units is abruptly reduced, down to a standstill, and sufficient compressed air for the air bearing cannot be generated. Harmful friction phenomena thereby arise within the air bearings and the service life of the motor is greatly reduced.
- the present invention has therefore set itself the object of showing a solution which prevents the loss of air pressure and of speed within the air-supported motor on a brief or certain interruption of the supply voltage and consequently reduces the wear of the air bearing.
- a drive circuit for an electric motor having aerodynamic bearing of the motor shaft or rotor shaft.
- the drive circuit provides at least one storage means for storing electrical energy.
- the stored energy of the at least one electrical storage means should now be utilized to maintain an emergency operation of the electric motor on a failure of the actual supply voltage.
- the electric motor can therefore be fed at least at times via the stored electrical energy of the at least one storage means on a voltage drop in order to be able to maintain a minimum speed of the motor shaft or rotor shaft.
- the minimum speed is selected so a satisfactory air bearing of the motor shaft is just provided.
- the drive circuit comprises a DC-link for supplying the electric motor with electrical energy. At least one electrical storage means is then a component of the intermediate circuit. On a failure of the DC-link voltage, the at least one electrical storage means takes over the energy supply of the electric motor.
- the electric motor can be configured as an AC current motor and is then fed by means of an inverter from the DC-link voltage.
- the inverter serves to regulate the motor speed.
- the at least one storage means can expediently be charged by the supply voltage or by the DC-link voltage during regular operation. With a sufficient voltage supply, the at least one storage means is charged up to a specific voltage level. It is thus ensured that on a later voltage failure of the supply voltage or of the DC-link voltage sufficient electrical energy is available in the storage means.
- a controller is ideally provided which recognizes a voltage failure of the supply voltage or of the DC-link voltage and switches over to the emergency supply of the electric motor by the at least one storage means in this case. This can be an active switching process of a specific component. There is alternatively the possibility that the at least one storage means is connected to the electric motor such that energy from the at least one storage means can be automatically provided to the electric motor on an interruption of the supply voltage.
- the drive circuit can preferably be designed such that it continues to allow a stabilization of the DC-link voltage during any fluctuations which may occur in the supply voltage or in the DC-link voltage.
- the controller of the drive circuit can preferably be designed such that it recognizes a power or voltage interruption or a falling below of a predefined lower limit value of the DC-link voltage. In this case, electrical energy can automatically be provided from the at least one storage means to support the voltage supply of the electric motor. The DC-link voltage can thereby be kept almost constant.
- the at least one air bearing electric motor can have at least one coupling means at the output side. It is expedient in this case if the controller of the drive circuit has corresponding means for actuating this coupling to switch the motor free of load in the case of an emergency, i.e. on a failure of the supply voltage or DC-link voltage. Ideal motor operating conditions are thereby created to be able to ensure a feeding of the motor from the storage means for as long as possible on a supply interruption.
- the at least one electrical storage means can be a low voltage store or alternatively a high voltage store. Suitable embodiments of the electrical storage means comprise at least one double layer capacitor and/or at least one rechargeable chemical battery cell, for example an Li ion cell.
- a measuring means can be provided for detecting the temperature of the at least one storage means.
- the charging voltage of the at least one storage means can then be determined or restricted in dependence on the measured temperature.
- the service life of the capacitor cells is in particular dependent on the environmental temperature and the applied voltage on the use of double layer capacitors. The higher the temperature and the selected charge voltage, the more the service life of the cells is shortened.
- the store temperature is measured and the level of the charge voltage of the at least one storage means is adapted while taking account of the measured temperature.
- the cell voltages are ideally reduced by approximately 0.1 V per 10° C. temperature increase. In this manner, the influence of the temperature on the cell service life is considerably compensated.
- the invention should, however, not be restricted to the listed example values.
- a low voltage store can be connected to the supply voltage or to the DC-link via a bidirectional DC/DC converter.
- the DC/DC converter works in step-down operation for the charging process of the store by the DC-link voltage or the supply voltage. On a failure of the supply voltage, the DC/DC converter can be switched into step-up operation. The air bearing motor can then be supplied from the low voltage store.
- the DC/DC converter has to be galvanically isolated between the low voltage store and the high voltage store.
- the at least one storage means is designed as a high voltage store.
- a galvanic isolation of the bidirectional DC/DC converter is not necessary between the DC-link and the storage means, which produces a substantial simplification of the complexity of the overall system.
- the at least one storage means is a high voltage store and is connected to the supply voltage or the DC-link via a unidirectional DC/DC converter.
- the DC/DC converter serves the charging of the at least one storage means with the supply voltage or the DC-link.
- the DC/DC converter preferably works in step-down operation in this respect.
- the storage can furthermore be connected to the air bearing motor via a diode.
- the motor On a failure of the supply voltage or of the DC-link voltage, the motor is automatically fed with electrical energy from the at least one storage means via the diode.
- a resistor element is then used via which the at least one storage is connected to the supply voltage or to the DC-link.
- the charging current from the DC-link can be limited via the resistor element.
- the charging of the storage means takes place via the resistor element, whereas the electric motor is fed from the storage via a diode on a failure of the supply voltage or of the DC-link voltage.
- the resistor element is expediently designed as a connected resistor element so that the charging process can be stopped as required, preferably when the storage voltage of the storage means has reached a predefined voltage level.
- the provided controller serves the control of the DC/DC converter or the control of the resistor element.
- the controller optionally takes over the switching over of the bidirectional converter between step-up operation and step-down operation.
- the at least one storage means can be monitored by the control and if its storage voltage can be detected.
- the control can actuate the DC/DC converter or the switchable resistor element in dependence on the measured storage voltage to control or interrupt the charging process in dependence on the storage voltage.
- the controller is furthermore suitable to control or regulate the motor speed via an inverter connected upstream of the electric motor.
- the controller or regulator is consequently connected to a corresponding sensor system for detecting the motor speed.
- the inverter can likewise be supplied with energy at least briefly by the at least one storage means on an interruption of the supply voltage/DC-link voltage.
- the inverter for example, requires electrical energy for operating the driver circuit or sensor system.
- An embodiment of the drive circuit is preferred in which a DC/DC converter of low power is connected in parallel with the at least one storage means to provide the supply voltage required for the inverter during the interruption of the supply voltage/DC-link voltage from the at least one storage means and to secure an autonomous of the drive circuit.
- the invention relates to an air conditioning system having an air bearing motor for driving a compressor and a drive circuit in accordance with the present invention or an advantageous embodiment of the drive circuit.
- the air conditioning system is consequently characterized by the same advantages and properties as the drive circuit in accordance with the invention. A repeat description is therefore dispensed with.
- the electric motor is preferably connected to the compressor via a coupling means which switches the electric motor load-free on an interruption of the supply voltage.
- the air conditioning system in particular serves the use in rail vehicles, wherein the supply voltage is preferably provided by an overhead line.
- FIG. 1 a circuit diagram of a drive circuit for controlling an air bearing motor in accordance with a first embodiment in accordance with the invention
- FIG. 2 the drive circuit in accordance with the invention in accordance with a second embodiment
- FIG. 3 the drive circuit in accordance with the invention in accordance with a third embodiment
- FIG. 4 the drive circuit in accordance with the invention in accordance with a fourth embodiment.
- FIG. 5 the drive circuit in accordance with the invention in accordance with FIG. 4 with an extension to supply the inverter.
- FIGS. 1 to 5 show a drive circuit having DC-link 10 for the energy supply of the electric motor 20 .
- the motor 20 is an electric motor having an aerodynamic bearing the motor shaft which serves the drive of an air conditioning compressor and is connected thereto via a coupling, not shown.
- the electric motor 20 is an AC current motor.
- the inverter 30 which converts the DC voltage U ZK of the DC-link 10 into the required AC voltage for feeding the motor, is therefore connected upstream of the motor 20 .
- the frequency of the generated AC voltage for regulating the speed of the motor 20 can be adjusted.
- the desired control of the inverter 30 takes place by the controller 40 of the drive circuit.
- the rotational speed ⁇ of the motor serves as the regulation value which is measured at the motor shaft and which is transferred to the controller 40 .
- the controller 40 then sets the required frequency of the inverter 30 in dependence on the desired speed.
- the circuit design shown having an air bearing motor 20 for driving a compressor is frequently used in air conditioning systems for rail vehicles.
- the air conditioning system like other consumers, too, are fed inside the rail vehicle from the overhead line.
- the voltage supply can therefore be briefly interrupted at the transition points and can fail. Since the motor 20 has an aerodynamic bearing, the effect of the air bearing depends on the speed of the motor 20 . If the speed falls below a critical limit value, there is a contact between the bearing counter-points and unwanted friction phenomena arise within the air bearing, whereby the service life is substantially reduced.
- an electrical storage 50 , 51 is integrated into the intermediate DC voltage circuit 10 so that the required energy can be provided during a voltage failure of the DC-link voltage U ZK for the disturbance-free operation of the air bearing motor 20 .
- the electrical energy of the storage means 50 , 51 ensures a minimum speed of the motor 20 to be able just to maintain the air pressure within the air bearing.
- the air bearing motor is fed by the voltage supply system and the storage 50 , 51 is simultaneously charged to the DC-link voltage U ZK . If the DC-link voltage U ZK is interrupted for a brief period, for example at transition points of the overhead line, the controller 40 recognizes the voltage failure and switches the energy supply of the motor 20 to the storage 50 , 51 .
- the air bearing motor 20 is simultaneously decoupled from the load. This takes place by the output-side coupling, not shown, between the motor 20 and the compressor. Ideal operating conditions for the air bearing motor 20 are hereby provided to ensure a maximum supply duration of the motor 20 from the storage means and consequently a maintenance of the minimal speed for as long as possible.
- the electrical storage 50 , 51 can comprise a plurality of double layer capacitors or of rechargeable battery cells such as Li ion cells.
- U Sp is the voltage of the store and U min is the minimally required DC-link voltage for a secure motor operation.
- FIG. 1 now shows the block diagram of the drive system which is capable of emergency operation and in which the storage means is designed as a low voltage storage 51 .
- the integration of the storage 51 in the DC-link 10 takes place via the bidirectional DC/DC converter 60 which moreover provides a galvanic separation between the DC-link voltage U ZK and the low voltage storage 51 .
- the controller 40 If the voltage supply system is in the normal state, this is recognized by the controller 40 and the motor is fed by the voltage supply, i.e. the DC-link voltage U ZK , via the inverter 30 .
- the low voltage storage 51 is charged by the DC/DC converter 60 , with this working as a step-down converter for this purpose and transforming the DC-link voltage U ZK with a higher volt figure into a lower DC voltage for the low voltage storage 51 .
- the control 40 switches the DC/DC converter 60 into the step-up mode, whereby the low voltage of the storage 51 is stepped up and feeds the motor 20 via the inverter 30 with electrical energy for maintaining the minimum speed.
- the required DC-link voltage is provided by the storage 51 here.
- FIG. 2 shows an embodiment which is modified with respect to FIG. 1 and in which a high voltage storage 50 is now used instead of a low voltage storage 51 .
- the switching design in particular the integration of the storage 50 into the intermediate circuit 10 , is simplified by the use of the high voltage storage 50 . Due to the lower voltage difference, the bidirectional DC/DC converter 61 does not have to ensure any galvanic isolation between the DC-link voltage U ZK and the voltage level of the high voltage storage 50 .
- a high voltage storage 50 is likewise used as a storage means analog to FIG. 2 .
- the DC/DC converter 62 now works only unidirectionally, and indeed in the step-down mode.
- the DC-fink voltage U ZK is thereby set to the required voltage of the high voltage storage 50 .
- the storage 50 is consequently charged by the DC-link voltage U ZK during the normal operation until a predefined voltage level is reached. Once this voltage level is reached, the controller 40 switches off the DC/DC converter 62 .
- the use of a DC/DC converter is now completely dispensed with. Instead, the high voltage storage 50 is charged in normal operation via a resistor 80 by the DC-link voltage U ZK .
- a switch 90 is connected upstream of the resistor 80 to be able to interrupt the charging process on reaching a predefined storage voltage of the high voltage storage 50 .
- the controller 40 monitors the storage voltage U Sp and opens the switch 90 where necessary as soon as the desired voltage is reached. The charging process is then interrupted.
- the high voltage storage 50 automatically supplies the motor 20 with electrical energy via the diode 70 connected to the DC-link 10 in the direction of flow.
- the resistor 80 limits the charging current during the charging phase, in particular when the storage is completely discharged.
- the resistance value R of the resistor 80 is calculated as follows:
- R U ZK I SP ⁇ ⁇ _ ⁇ ⁇ Max , where U ZK is the DC-link voltage and I Sp _ Max is the maximum permitted charging current of the storage 50 .
- the embodiment in accordance with FIG. 5 substantially corresponds to that in accordance with FIG. 4 .
- the DC/DC converter 95 of small power is connected in parallel to the high voltage storage 50 to provide the supply voltage required for the inverter 30 for the operation of the internal driver circuit as well as the sensor system during an interruption of the DC-link voltage and to secure an autonomous operation of the drive circuit.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Inverter Devices (AREA)
- Motor Or Generator Cooling System (AREA)
- Control Of Electric Motors In General (AREA)
- Control Of Ac Motors In General (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013014427.2A DE102013014427A1 (de) | 2013-08-30 | 2013-08-30 | Antriebsschaltung für Luftlagermotor |
DE102013014427 | 2013-08-30 | ||
DE102013014427.2 | 2013-08-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20150130384A1 US20150130384A1 (en) | 2015-05-14 |
US9571014B2 true US9571014B2 (en) | 2017-02-14 |
Family
ID=51211653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/474,672 Active 2034-11-04 US9571014B2 (en) | 2013-08-30 | 2014-09-02 | Drive circuit for an air bearing motor |
Country Status (6)
Country | Link |
---|---|
US (1) | US9571014B2 (fr) |
EP (1) | EP2843784B1 (fr) |
JP (1) | JP2015050926A (fr) |
CN (1) | CN104426452B (fr) |
DE (1) | DE102013014427A1 (fr) |
RU (1) | RU2014135383A (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160359428A1 (en) * | 2015-06-02 | 2016-12-08 | Lsis Co., Ltd. | Control power supply device for inverter |
US20180154931A1 (en) * | 2014-06-13 | 2018-06-07 | Nsk Ltd. | Motor control apparatus and electric power steering apparatus provided the same |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9887652B2 (en) | 2016-06-17 | 2018-02-06 | Semiconductor Components Industries, Llc | Controlling lead angle using a single motor integrated circuit pin |
US10243490B2 (en) | 2016-06-17 | 2019-03-26 | Semiconductor Components Industries, Llc | Controlling multiple facets of duty cycle response using a single motor integrated circuit pin |
US10158308B2 (en) | 2016-06-17 | 2018-12-18 | Semiconductor Components Industries, Llc | Identifying voltage to prevent motor integrated circuit damage |
DE102019200459A1 (de) * | 2019-01-16 | 2020-07-16 | Robert Bosch Gmbh | Brennstoffzellensystem |
US10855214B2 (en) * | 2019-04-09 | 2020-12-01 | Hamilton Sunstrand Corporation | Electrical powertrain for aircraft |
DE102019135106B4 (de) * | 2019-12-19 | 2023-07-06 | P-Duke Technology Co., Ltd. | Steuerschaltung mit einer verlängerten überbrückungszeit und wandlungssystem mit verlängerter überbrückungszeit |
US20210249872A1 (en) * | 2020-02-06 | 2021-08-12 | Samsung Sdi Co., Ltd. | Battery system |
DE102022111296A1 (de) | 2022-05-06 | 2023-11-09 | Bayerische Motoren Werke Aktiengesellschaft | Leistungselektronikmodul für eine elektrische Antriebseinheit mit einer Notversorgungseinrichtung |
Citations (46)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1613048A1 (de) | 1966-03-28 | 1970-05-21 | Cie Electro Mecanique S A | Elektrische Maschine mit gasgeschmiertem Lager |
US3989990A (en) * | 1974-05-31 | 1976-11-02 | Westinghouse Electric Corporation | Feedback field control for an electric vehicle |
US4052647A (en) * | 1974-01-28 | 1977-10-04 | Westinghouse Electric Corporation | Optimum battery reconnect for a field controlled electric vehicle |
US4315162A (en) * | 1980-05-09 | 1982-02-09 | Control Technology, Incorporated | Reserve power supply for computers |
DE3304377A1 (de) | 1983-02-09 | 1984-08-16 | Fried. Krupp Gmbh, 4300 Essen | Einrichtung zur energieversorgung von nutzverbrauchern in einem schienenfahrzeug |
US4795914A (en) * | 1986-12-26 | 1989-01-03 | Kabushiki Kaisha Toshiba | Power supply circuit with backup function |
US5034622A (en) * | 1990-03-07 | 1991-07-23 | Snc Manufacturing Co., Inc. | Power supply interface apparatus for communication facilities at a power station |
US5350992A (en) * | 1991-09-17 | 1994-09-27 | Micro-Trak Systems, Inc. | Motor control circuit |
US5371793A (en) * | 1992-07-10 | 1994-12-06 | Mitsubishi Denki Kabushiki Kaisha | Data storage device and method of accessing the data storage device |
US5456407A (en) * | 1994-03-25 | 1995-10-10 | Electric Power Research Institute, Inc. | Two terminal line voltage thermostat |
US5457365A (en) * | 1992-12-04 | 1995-10-10 | Integral Peripherals, Inc. | Disk drive power management system |
DE19526291A1 (de) | 1994-07-23 | 1996-01-25 | Levitex Ag | Magnetisch gelagerte Vakuumzentrifuge und Dichtungsverfahren |
US5658132A (en) * | 1993-10-08 | 1997-08-19 | Sawafuji Electric Co., Ltd. | Power supply for vibrating compressors |
US5668463A (en) * | 1994-07-22 | 1997-09-16 | Advanced Micro Devices, Inc. | Auxiliary battery charge control circuit |
US5866023A (en) * | 1997-07-03 | 1999-02-02 | Monarch Marking Systems, Inc. | Portable barcode label printer battery switching circuit |
US5878189A (en) * | 1996-07-09 | 1999-03-02 | Crown Equipment Corporation | Control system for a separately excited DC motor |
US5880537A (en) * | 1997-01-10 | 1999-03-09 | Caterpillar Inc. | Uninterruptable power supply |
US6009344A (en) * | 1997-07-25 | 1999-12-28 | Becton, Dickinson And Company | Iontophoretic drug delivery system |
US6021251A (en) * | 1997-07-08 | 2000-02-01 | Crown Equipment Corporation | Compensated field current control for a separately excited DC motor |
US6031965A (en) * | 1997-07-08 | 2000-02-29 | Solaria Research Enterprise, Ltd. | Separately excited DC motor with boost and de-boost control |
US6064937A (en) * | 1996-10-29 | 2000-05-16 | Hyundai Motor Company | Compound cruise control system and method for solar cars |
US6064122A (en) * | 1998-11-05 | 2000-05-16 | Alliedsignal Power Systems Inc. | Microturbine power of generating system including a battery source for supplying startup power |
US6184593B1 (en) * | 1999-07-29 | 2001-02-06 | Abb Power T&D Company Inc. | Uninterruptible power supply |
US6215279B1 (en) * | 2000-03-30 | 2001-04-10 | Adc Telecommunications, Inc. | Power circuit with double current limiting |
US6348777B1 (en) * | 2000-02-29 | 2002-02-19 | Alaris Medical Systems, Inc. | Power management system |
DE10037077A1 (de) | 2000-07-27 | 2002-02-28 | Paul Mueller Gmbh & Co Kg | Dynamische Gaslagerung einer Motorspindel mit Entlüftung |
US6359794B1 (en) * | 1999-12-01 | 2002-03-19 | Acme Electric Corporation | Battery backup power supply |
US20030052544A1 (en) * | 2000-03-08 | 2003-03-20 | Eiji Yamamoto | Pwm cycloconverter and power fault detector |
US20030106332A1 (en) * | 2000-06-28 | 2003-06-12 | Hiroshi Okamoto | Refrigerating apparatus for use in vehicles, using an engine as power source |
US20040035646A1 (en) * | 2001-10-17 | 2004-02-26 | Hiroshi Araki | Elevator controller |
US20040041404A1 (en) * | 2002-08-28 | 2004-03-04 | Mcconnell Robert W. | Systems and methods for managing a battery source associated with a microturbine power generating system |
US20050035741A1 (en) * | 2003-08-11 | 2005-02-17 | David Elder | Multiple battery management system, auxiliary battery attachment system, and network controlled multiple battery system |
US20050035737A1 (en) * | 2003-08-11 | 2005-02-17 | Whodathought Holdings, Inc. | [Multiple Battery System and Auxiliary Battery Attachment System] |
US20050123408A1 (en) * | 2003-12-08 | 2005-06-09 | Koehl Robert M. | Pump control system and method |
US20060152085A1 (en) * | 2004-10-20 | 2006-07-13 | Fred Flett | Power system method and apparatus |
US20070022755A1 (en) * | 2003-02-05 | 2007-02-01 | Active Power, Inc. | Systems and methods for providing backup energy to a load |
DE202007009660U1 (de) | 2007-07-11 | 2007-09-13 | Robert Bosch Gmbh | Elektrischer Stellantrieb |
US20080277191A1 (en) * | 2006-06-06 | 2008-11-13 | Toyota Jidosha Kabushiki Kaisha | Electric Power Steering Apparatus and Method for Controlling the Electric Power Steering Apparatus |
DE102008001112A1 (de) | 2008-02-18 | 2009-08-27 | Fortune Semiconductor Corporation, Tamshui Chen | Temperatursensor für einen Schaltkreis zur Steuerung von Auf- und Entladevorgängen eines Akkus |
DE102008019683A1 (de) | 2008-04-11 | 2009-10-15 | Siemens Aktiengesellschaft | Schienenfahrzeug sowie Verfahren zur Reduzierung des Kraftstoffverbrauchs eines Schienenfahrzeugs |
US20090261761A1 (en) * | 2006-06-01 | 2009-10-22 | Takeuchi Mfg. Co., Ltd. | Working vehicle |
DE102008027697A1 (de) | 2008-05-26 | 2009-12-03 | Still Gmbh | Verfahren zur Gleichspannungswandlung bei mobilen Arbeitsmaschinen |
US20090293523A1 (en) * | 2008-06-02 | 2009-12-03 | Dover Systems, Inc. | System and method for using a photovoltaic power source with a secondary coolant refrigeration system |
US20110065012A1 (en) * | 2009-09-11 | 2011-03-17 | Hyundai Motor Company | Method for shutting down fuel cell system |
US20110290593A1 (en) * | 2009-01-12 | 2011-12-01 | Kone Corporation | Transportation system |
DE102010041065A1 (de) | 2010-09-20 | 2012-03-22 | Robert Bosch Gmbh | System zum Laden eines Energiespeichers und Verfahren zum Betrieb des Ladesystems |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58177864A (ja) * | 1982-04-07 | 1983-10-18 | 株式会社日立製作所 | 交流エレベ−タ−の制御装置 |
JP3309494B2 (ja) * | 1993-06-08 | 2002-07-29 | 株式会社明電舎 | インバータの停電対策回路 |
DE19921146A1 (de) * | 1999-03-11 | 2000-10-05 | Daimler Chrysler Ag | Stromversorgungsanordnung mit einem Energiespeicher |
JP2003299304A (ja) * | 2002-03-29 | 2003-10-17 | Nidec Copal Electronics Corp | 動圧気体軸受を備えるモータ |
JP2004064977A (ja) * | 2002-07-31 | 2004-02-26 | Densei Lambda Kk | 無停電電源装置 |
JP4337848B2 (ja) * | 2006-07-10 | 2009-09-30 | トヨタ自動車株式会社 | 電源システムおよびそれを備える車両、ならびに温度管理方法 |
JP2008035588A (ja) * | 2006-07-26 | 2008-02-14 | Fanuc Ltd | モータ駆動装置 |
CN101269358B (zh) * | 2007-03-22 | 2011-05-11 | 金正元 | 一种旋转喷雾器及其空气轴承保护系统 |
JP2009261161A (ja) * | 2008-04-18 | 2009-11-05 | Kyoto Denkiki Kk | 瞬時電圧低下保護装置 |
JP2010124549A (ja) * | 2008-11-17 | 2010-06-03 | Toshiba Corp | 移動体 |
DE102009014386A1 (de) * | 2009-03-26 | 2010-09-30 | Volkswagen Ag | Energiespeicher und Steuerung zur Energieversorgung eines Traktionsnetzes eines Elektrofahrzeugs |
JP2012016178A (ja) * | 2010-07-01 | 2012-01-19 | Shizuki Electric Co Inc | 瞬低・停電補償装置 |
DE112012002973B4 (de) * | 2011-08-24 | 2022-11-24 | Borgwarner Inc. | radiales Luftlager und Lageranordnung |
-
2013
- 2013-08-30 DE DE102013014427.2A patent/DE102013014427A1/de not_active Withdrawn
-
2014
- 2014-07-21 EP EP14177823.3A patent/EP2843784B1/fr active Active
- 2014-08-06 JP JP2014160288A patent/JP2015050926A/ja active Pending
- 2014-08-20 CN CN201410412060.4A patent/CN104426452B/zh active Active
- 2014-08-29 RU RU2014135383A patent/RU2014135383A/ru not_active Application Discontinuation
- 2014-09-02 US US14/474,672 patent/US9571014B2/en active Active
Patent Citations (85)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1613048A1 (de) | 1966-03-28 | 1970-05-21 | Cie Electro Mecanique S A | Elektrische Maschine mit gasgeschmiertem Lager |
US4052647A (en) * | 1974-01-28 | 1977-10-04 | Westinghouse Electric Corporation | Optimum battery reconnect for a field controlled electric vehicle |
US3989990A (en) * | 1974-05-31 | 1976-11-02 | Westinghouse Electric Corporation | Feedback field control for an electric vehicle |
US4315162A (en) * | 1980-05-09 | 1982-02-09 | Control Technology, Incorporated | Reserve power supply for computers |
DE3304377A1 (de) | 1983-02-09 | 1984-08-16 | Fried. Krupp Gmbh, 4300 Essen | Einrichtung zur energieversorgung von nutzverbrauchern in einem schienenfahrzeug |
US4795914A (en) * | 1986-12-26 | 1989-01-03 | Kabushiki Kaisha Toshiba | Power supply circuit with backup function |
US5034622A (en) * | 1990-03-07 | 1991-07-23 | Snc Manufacturing Co., Inc. | Power supply interface apparatus for communication facilities at a power station |
US5350992A (en) * | 1991-09-17 | 1994-09-27 | Micro-Trak Systems, Inc. | Motor control circuit |
US5371793A (en) * | 1992-07-10 | 1994-12-06 | Mitsubishi Denki Kabushiki Kaisha | Data storage device and method of accessing the data storage device |
US5457365A (en) * | 1992-12-04 | 1995-10-10 | Integral Peripherals, Inc. | Disk drive power management system |
US5658132A (en) * | 1993-10-08 | 1997-08-19 | Sawafuji Electric Co., Ltd. | Power supply for vibrating compressors |
US5456407A (en) * | 1994-03-25 | 1995-10-10 | Electric Power Research Institute, Inc. | Two terminal line voltage thermostat |
US5668463A (en) * | 1994-07-22 | 1997-09-16 | Advanced Micro Devices, Inc. | Auxiliary battery charge control circuit |
DE19526291A1 (de) | 1994-07-23 | 1996-01-25 | Levitex Ag | Magnetisch gelagerte Vakuumzentrifuge und Dichtungsverfahren |
US5878189A (en) * | 1996-07-09 | 1999-03-02 | Crown Equipment Corporation | Control system for a separately excited DC motor |
US6064937A (en) * | 1996-10-29 | 2000-05-16 | Hyundai Motor Company | Compound cruise control system and method for solar cars |
US5880537A (en) * | 1997-01-10 | 1999-03-09 | Caterpillar Inc. | Uninterruptable power supply |
US5866023A (en) * | 1997-07-03 | 1999-02-02 | Monarch Marking Systems, Inc. | Portable barcode label printer battery switching circuit |
US6021251A (en) * | 1997-07-08 | 2000-02-01 | Crown Equipment Corporation | Compensated field current control for a separately excited DC motor |
US6031965A (en) * | 1997-07-08 | 2000-02-29 | Solaria Research Enterprise, Ltd. | Separately excited DC motor with boost and de-boost control |
US6009344A (en) * | 1997-07-25 | 1999-12-28 | Becton, Dickinson And Company | Iontophoretic drug delivery system |
US6064122A (en) * | 1998-11-05 | 2000-05-16 | Alliedsignal Power Systems Inc. | Microturbine power of generating system including a battery source for supplying startup power |
US6184593B1 (en) * | 1999-07-29 | 2001-02-06 | Abb Power T&D Company Inc. | Uninterruptible power supply |
US6359794B1 (en) * | 1999-12-01 | 2002-03-19 | Acme Electric Corporation | Battery backup power supply |
US6348777B1 (en) * | 2000-02-29 | 2002-02-19 | Alaris Medical Systems, Inc. | Power management system |
US20030052544A1 (en) * | 2000-03-08 | 2003-03-20 | Eiji Yamamoto | Pwm cycloconverter and power fault detector |
US6215279B1 (en) * | 2000-03-30 | 2001-04-10 | Adc Telecommunications, Inc. | Power circuit with double current limiting |
US20030106332A1 (en) * | 2000-06-28 | 2003-06-12 | Hiroshi Okamoto | Refrigerating apparatus for use in vehicles, using an engine as power source |
DE10037077A1 (de) | 2000-07-27 | 2002-02-28 | Paul Mueller Gmbh & Co Kg | Dynamische Gaslagerung einer Motorspindel mit Entlüftung |
US20040035646A1 (en) * | 2001-10-17 | 2004-02-26 | Hiroshi Araki | Elevator controller |
US6827182B2 (en) * | 2001-10-17 | 2004-12-07 | Mitsubishi Denki Kabushiki Kaisha | Elevator controller |
US20040041404A1 (en) * | 2002-08-28 | 2004-03-04 | Mcconnell Robert W. | Systems and methods for managing a battery source associated with a microturbine power generating system |
US6703719B1 (en) * | 2002-08-28 | 2004-03-09 | General Electric Company | Systems and methods for managing a battery source associated with a microturbine power generating system |
US7681395B2 (en) * | 2003-02-05 | 2010-03-23 | Joseph F Pinkerton | Systems and methods for providing backup energy to a load |
US20070022755A1 (en) * | 2003-02-05 | 2007-02-01 | Active Power, Inc. | Systems and methods for providing backup energy to a load |
US20050035737A1 (en) * | 2003-08-11 | 2005-02-17 | Whodathought Holdings, Inc. | [Multiple Battery System and Auxiliary Battery Attachment System] |
US7839117B2 (en) * | 2003-08-11 | 2010-11-23 | Reserve Power Cell, Llc | System and method of detecting a battery fault |
US7834583B2 (en) * | 2003-08-11 | 2010-11-16 | Reserve Power Cell, Llc | Remotely controlled multiple battery system |
US20050035741A1 (en) * | 2003-08-11 | 2005-02-17 | David Elder | Multiple battery management system, auxiliary battery attachment system, and network controlled multiple battery system |
US7339347B2 (en) * | 2003-08-11 | 2008-03-04 | Reserve Power Cell, Llc | Apparatus and method for reliably supplying electrical energy to an electrical system |
US7567057B2 (en) * | 2003-08-11 | 2009-07-28 | Reserve Power Cell, Llc | Multiple battery management system, auxiliary battery attachment system, and network controlled multiple battery system |
US20080111557A1 (en) * | 2003-08-11 | 2008-05-15 | Reserve Power Cell, Llc | Method for detecting a discharge condition fault in an electrical system of a vehicle or piece of machinery |
US7427865B2 (en) * | 2003-08-11 | 2008-09-23 | Reserve Power Cell, Llc | Method for detecting a discharge condition fault in an electrical system of a vehicle or piece of machinery |
US20080315837A1 (en) * | 2003-08-11 | 2008-12-25 | David Elder | Remotely controlled multiple battery system |
US20080315686A1 (en) * | 2003-08-11 | 2008-12-25 | David Elder | System and method of detecting a battery fault |
US20080131294A1 (en) * | 2003-12-08 | 2008-06-05 | Koehl Robert M | Pump controller system and method |
US7990091B2 (en) * | 2003-12-08 | 2011-08-02 | Sta-Rite Industries, Llc | Pump controller system and method |
US20080131296A1 (en) * | 2003-12-08 | 2008-06-05 | Koehl Robert M | Pump controller system and method |
US20080140353A1 (en) * | 2003-12-08 | 2008-06-12 | Koehl Robert M | Pump controller system and method |
US20080181789A1 (en) * | 2003-12-08 | 2008-07-31 | Koehl Robert M | Pump controller system and method |
US20080181787A1 (en) * | 2003-12-08 | 2008-07-31 | Koehl Robert M | Pump controller system and method |
US20080181785A1 (en) * | 2003-12-08 | 2008-07-31 | Koehl Robert M | Pump controller system and method |
US20080131286A1 (en) * | 2003-12-08 | 2008-06-05 | Koehl Robert M | Pump controller system and method |
US20080260540A1 (en) * | 2003-12-08 | 2008-10-23 | Koehl Robert M | Pump controller system and method |
US8540493B2 (en) * | 2003-12-08 | 2013-09-24 | Sta-Rite Industries, Llc | Pump control system and method |
US20080131295A1 (en) * | 2003-12-08 | 2008-06-05 | Koehl Robert M | Pump controller system and method |
US20080131289A1 (en) * | 2003-12-08 | 2008-06-05 | Koehl Robert M | Pump controller system and method |
US20080063535A1 (en) * | 2003-12-08 | 2008-03-13 | Koehl Robert M | Pump controller system and method |
US7572108B2 (en) * | 2003-12-08 | 2009-08-11 | Sta-Rite Industries, Llc | Pump controller system and method |
US8444394B2 (en) * | 2003-12-08 | 2013-05-21 | Sta-Rite Industries, Llc | Pump controller system and method |
US7857600B2 (en) * | 2003-12-08 | 2010-12-28 | Sta-Rite Industries, Llc | Pump controller system and method |
US20080131291A1 (en) * | 2003-12-08 | 2008-06-05 | Koehl Robert M | Pump controller system and method |
US7612510B2 (en) * | 2003-12-08 | 2009-11-03 | Sta-Rite Industries, Llc | Pump controller system and method |
US7983877B2 (en) * | 2003-12-08 | 2011-07-19 | Sta-Rite Industries, Llc | Pump controller system and method |
US7976284B2 (en) * | 2003-12-08 | 2011-07-12 | Sta-Rite Industries, Llc | Pump controller system and method |
US20050123408A1 (en) * | 2003-12-08 | 2005-06-09 | Koehl Robert M. | Pump control system and method |
US7686587B2 (en) * | 2003-12-08 | 2010-03-30 | Sta-Rite Industries, Llc | Pump controller system and method |
US7704051B2 (en) * | 2003-12-08 | 2010-04-27 | Sta-Rite Industries, Llc | Pump controller system and method |
US7751159B2 (en) * | 2003-12-08 | 2010-07-06 | Sta-Rite Industries, Llc | Pump controller system and method |
US7815420B2 (en) * | 2003-12-08 | 2010-10-19 | Sta-Rite Industries, Llc | Pump controller system and method |
US7821215B2 (en) * | 2003-12-08 | 2010-10-26 | Sta-Rite Industries, Llc | Pump controller system and method |
US20060152085A1 (en) * | 2004-10-20 | 2006-07-13 | Fred Flett | Power system method and apparatus |
US7973499B2 (en) * | 2006-06-01 | 2011-07-05 | Takeuchi Mfg. Co., Ltd. | Working vehicle |
US20090261761A1 (en) * | 2006-06-01 | 2009-10-22 | Takeuchi Mfg. Co., Ltd. | Working vehicle |
US7845459B2 (en) * | 2006-06-06 | 2010-12-07 | Toyota Jidosha Kabushiki Kaisha | Electric power steering apparatus and method for controlling the electric power steering apparatus |
US20080277191A1 (en) * | 2006-06-06 | 2008-11-13 | Toyota Jidosha Kabushiki Kaisha | Electric Power Steering Apparatus and Method for Controlling the Electric Power Steering Apparatus |
DE202007009660U1 (de) | 2007-07-11 | 2007-09-13 | Robert Bosch Gmbh | Elektrischer Stellantrieb |
DE102008001112A1 (de) | 2008-02-18 | 2009-08-27 | Fortune Semiconductor Corporation, Tamshui Chen | Temperatursensor für einen Schaltkreis zur Steuerung von Auf- und Entladevorgängen eines Akkus |
DE102008019683A1 (de) | 2008-04-11 | 2009-10-15 | Siemens Aktiengesellschaft | Schienenfahrzeug sowie Verfahren zur Reduzierung des Kraftstoffverbrauchs eines Schienenfahrzeugs |
DE102008027697A1 (de) | 2008-05-26 | 2009-12-03 | Still Gmbh | Verfahren zur Gleichspannungswandlung bei mobilen Arbeitsmaschinen |
US20090293523A1 (en) * | 2008-06-02 | 2009-12-03 | Dover Systems, Inc. | System and method for using a photovoltaic power source with a secondary coolant refrigeration system |
US20110290593A1 (en) * | 2009-01-12 | 2011-12-01 | Kone Corporation | Transportation system |
US8177033B2 (en) * | 2009-01-12 | 2012-05-15 | Kone Corporation | Transportation system with capacitive energy storage and non-volatile memory for storing the operational state of the transportation system upon detection of the operational anomaly in power |
US20110065012A1 (en) * | 2009-09-11 | 2011-03-17 | Hyundai Motor Company | Method for shutting down fuel cell system |
DE102010041065A1 (de) | 2010-09-20 | 2012-03-22 | Robert Bosch Gmbh | System zum Laden eines Energiespeichers und Verfahren zum Betrieb des Ladesystems |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180154931A1 (en) * | 2014-06-13 | 2018-06-07 | Nsk Ltd. | Motor control apparatus and electric power steering apparatus provided the same |
US10259491B2 (en) * | 2014-06-13 | 2019-04-16 | Nsk Ltd. | Motor control apparatus and electric power steering apparatus provided the same |
US20160359428A1 (en) * | 2015-06-02 | 2016-12-08 | Lsis Co., Ltd. | Control power supply device for inverter |
US9876441B2 (en) * | 2015-06-02 | 2018-01-23 | Lsis Co., Ltd. | Control power supply device for inverter |
Also Published As
Publication number | Publication date |
---|---|
JP2015050926A (ja) | 2015-03-16 |
RU2014135383A (ru) | 2016-03-20 |
EP2843784A2 (fr) | 2015-03-04 |
CN104426452A (zh) | 2015-03-18 |
DE102013014427A1 (de) | 2015-03-05 |
EP2843784B1 (fr) | 2022-02-09 |
CN104426452B (zh) | 2020-02-11 |
EP2843784A3 (fr) | 2015-10-07 |
US20150130384A1 (en) | 2015-05-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9571014B2 (en) | Drive circuit for an air bearing motor | |
EP2689944B1 (fr) | Système de réfrigération de transport | |
CN101454960B (zh) | 活门或者阀的安全驱动装置 | |
EP3417526B1 (fr) | Systèmes et procédés pour charger simultanément une batterie avec de multiples sources d'alimentation | |
US6788027B2 (en) | System for controlling the voltage of an energy storage device to prevent premature aging of the device | |
RU2418721C2 (ru) | Система электропитания для электроснабжения по меньшей мере одного потребителя на летательном аппарате | |
JP2020010599A (ja) | エンジン始動およびバッテリ支援モジュール | |
US20130088010A1 (en) | Pitch system for a wind energy system and method for operating a pitch system | |
JP2015503315A (ja) | 車載電気システム、および車載電気システムの動作方法 | |
US11929636B2 (en) | Hybrid generator system and method of operation and control | |
CN101803089B (zh) | 燃料电池系统 | |
JP2001197788A (ja) | 自動車用空調装置 | |
CN110015207B (zh) | 燃料电池车 | |
KR101070293B1 (ko) | 선상 전력 시스템을 작동시키는 방법 | |
JP4199148B2 (ja) | ハイブリッドシステム | |
JP6344176B2 (ja) | 給電設備及びその運転方法 | |
US11192464B2 (en) | Vehicle-mounted power source device | |
US11929661B2 (en) | In-vehicle power supply device | |
JP2004274920A (ja) | 車両用電源装置 | |
JP5177438B2 (ja) | 直流電源用電圧低下保護装置 | |
US20070147807A1 (en) | Control unit | |
JP5416836B2 (ja) | キャパシタを用いた蓄電装置 | |
JP2008141879A (ja) | 燃料電池車両制御装置 | |
JP2023124240A (ja) | 自立連系システム及びパワーコンディショナ | |
CN113525268A (zh) | 用于管理从车辆交流发电机汲取的电力的系统和方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: LIEBHERR-ELEKTRONIK GMBH, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MAHDAVI, NEJAT;CREMER, RALF;BRODEAU, PIERRE;SIGNING DATES FROM 20140908 TO 20140915;REEL/FRAME:034124/0355 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
MAFP | Maintenance fee payment |
Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY Year of fee payment: 4 |